Graft fixation device and method

• US 20020052628A1
• Filed: 05/24/2001
• Published: 05/02/2002
• Est. Priority Date: 07/23/1999
• Status: Abandoned Application

• Current Assignee: Steven M. Bowman
• Original Assignee: Steven M. Bowman
• Inventors: Bowman, Steven M.
• Application Number:
  US09/864,619
• Publication Number:
  US 20020052628A1
• Time in Patent Office: Days
• US Class Current: 606/232
• CPC Class Codes: A61B 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61B 17/0642 for bones, e.g. for osteosynthesis or connecting tendon to bone
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/92 Impactors or extractors, e.g. for removing intramedullary devices insertion or extraction of artificial joints A61F2/4603
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable, resorptive for implantable prostheses A61F2210/0004
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors for applying suture clamps, clips or locks A61B2017/0488
• CPC Class Codes: A61B 2017/0412 having anchoring barbs or pins extending outwardly from suture anchor body
• CPC Class Codes: A61B 2017/0419 H-fasteners
• CPC Class Codes: A61B 2017/0427 having anchoring barbs or pins extending outwardly from the anchor body
• CPC Class Codes: A61B 2017/0445 cannulated, e.g. with a longitudinal through-hole for passage of an instrument
• CPC Class Codes: A61B 2017/0646 for insertion into cartillege, e.g. meniscus
• CPC Class Codes: A61B 2017/0647 having one single leg, e.g. tacks
• CPC Class Codes: A61F 2/2846 Support means for bone substitute or for bone graft implants, e.g. membranes or plates for covering bone defects nets or sleeves applied to surface of endoprostheses A61F2/30907; bone plates A61B17/80; bone regeneration in dental surgery A61C8/0006

Abstract

A graft fixation device. The device is useful for affixing a tissue graft to a bone or other body surface. The graft fixation device comprises two implantation members connected by a connecting member. The implantation members have longitudinal passageways therethrough.

Claims

1. A graft fixation device comprising:

a first implantation member, said implantation member having a longitudinal axis, a proximal end, a distal end, an outer surface, and a longitudinal passage therethrough;

a second implantation member, said implantation member having a longitudinal axis, a proximal end, a distal end, an outer surface, and a longitudinal passage therethrough;

a proximal annular face on the proximal ends of the first and second implantation members surrounding the longitudinal passage; and

,

a connecting member connecting the first and second implantation members, the connecting member having a central section, a first end extending from the first implantation member and a second end extending from the second implantation member.

2. The device of claim 1, wherein the implantation members have a series of ridges extending from the outer surfaces thereof.

3. The device of claim 1, wherein the connecting member is shaped into a configuration having a central section and rod members, wherein the rod members are substantially parallel to the longitudinal axes of the implantation members, and the central section is substantially perpendicular to the rod members.

4. The device of claim 1, wherein the connecting member has a semi-circular configuration.

5. The device of claim 1, additionally comprising a frustoconical end extending from the distal end of the first implantation member and the distal end of the second implantation member.

6. The device of claim 1, wherein the implantation members have a cylindrical configuration.

7. A method of mounting a matrix to tissue, comprising the steps of:

providing a graft fixation device, said device comprising;

a first implantation member, said implantation member having a longitudinal axis, a proximal end, a distal end, an outer surface, and a longitudinal passage therethrough;

a second implantation member, said implantation member having a longitudinal axis, a proximal end, a distal end, an outer surface, and a longitudinal passage therethrough;

a proximal annular face on the proximal ends of the first and second implantation members surrounding the longitudinal passage; and

,

a connecting member connecting the first and second implantation members, the connecting member having a central section, a first end extending from the first implantation member and a second end extending from the second implantation member;

forming a pair of spaced apart bore holes in bone;

mounting the device to an insertion instrument having a pair of spaced apart prongs, said prongs having distal ends, such that the prongs are contained within the passages of the implant members and the distal ends extend beyond the distal ends of the implant members;

placing a matrix onto the surface of the bone over the bore holes;

and inserting the implantation members through the matrix and into the bore holes, thereby securing the matrix to the bone.

8. The method of claim 7, wherein the implantation members have a series of ridges extending from the outer surfaces thereof.

9. The method of claim 7, wherein the connecting member is shaped into a configuration having a central section and rod members, wherein the rod members are substantially parallel to the longitudinal axes of the implantation members, and the central section is substantially perpendicular to the rod members.

10. The method of claim 7, wherein the connecting member has a semi-circular configuration.

11. The method of claim 7 wherein the implantation members additionally comprise a frustoconical end extending from the distal end of the first implantation member and the distal end of the second implantation member.

12. The method of claim 7 wherein the implantation members have a cylindrical configuration.

13. The method of claim 7, wherein each prong additionally comprises a point extending from the distal end.

14. The method of claim 7, wherein each prong comprises a distal section having a cross-section and a proximal section having a cross-section, wherein the area of the cross-section of the proximal section is greater than the area of the distal cross-section.

15. The method of claim 7, wherein each prong has a circular cross-section.